A revision of the western North American species of the genus Senecio allied with Senecio integerriumus Nuttall
By: by Theodore Mitchell Barkley.
Published: 1957
Language: eng
Number of pages: 91
Subjects: Senecio.
Notes: Typescript.

Thesis (M.S.)--Oregon State College, 1957.

Bibliography: leaves 81-82.